Everything You Should Know About Copper and Hormonal Contraceptive Coil

Everything You Should Know About Copper and Hormonal Contraceptive Coil

Contraceptive coil can be found in two different kinds – copper-based intrauterine devices (IUD) and hormonal intrauterine devices, also called IUS – intrauterine system. Both of them are made from plastic, either "coated" with hormones or copper. Both methods of IUD contraception will be inserted into the uterus for complete protection against pregnancy for a long time. This protection usually lasts for around 5 to 10 years. However, they do not provide protection against sexually transmitted infections.

How contraceptive coil works

IUD is a small device in T-shape form that produces copper ions which killthe sperm. The coilworks by preventing sperm from getting into the ovaries by stopping fertilised egg from implanting in the uterus. Various threads are attached to the coil that makes it quite easy to check that it is in its proper place.The coil may also be used for emergency contraception when the coil insertion procedure is done within 5 days after you have had unprotected sex.

Benefits of copper contraceptive coil

Copper coil usually works for 10 years and you will have to go for regular check-ups to ensure the coil is still in its place. Contraception with coil is nearly 98-99% effective for the first 5 years.

  • The main benefit of using contraceptive coil is you do not have to think about contraception every time you enjoy sex with your partner.
  • It does not have any side effects since it will not depend on hormones to preventing pregnancy.

About hormonal contraceptive coil

The physical appearance of hormonal coil insertionis somewhat similar to the copper-based option. It is exactly the same to the T-shaped plastic device, except it is“coated” with hormones.

Advantages of hormonal contraceptive coil

  • Hormonal intrauterine contraception is quite effective in avoiding pregnancy,just likethe copper-based version. Though it will last for nearly five years, it also makes periods less painful and lighter after 3-6 months.
  • The method is an effective treatment forendometriosis and heavy periods that reduce the risk with pelvic inflammatory diseases or PID.
  • Unlike copper coil, it can be removed at any time which allows you to be fertile again quickly.

Your doctor will suggest that you are not the right candidate that can usethe hormonal contraceptive coil in case you:


  • Had or have uterus, breast, liver or cervical cancer.
  • Have a sexually transmitted disease.
  • Have a vaginal inflammation or pelvic infection.
  • Have fibroids in and around the womb.If there is a risk, the chances of the coil being pushed out will increase.

More about copper and hormonal contraceptive coil

  • Copper coil helps to prevent pregnancy by using copper ions that killthe sperm so that no egg isfertilised.
  • Hormonal coil uses hormones to avoid the sperm from reaching out to the ovaries. This will prevent fertilised eggs from growing further into the womb.
  • Both kinds of intrauterine devices are effective. While the copper coil may last for nearly 10 years, hormonal coil usually lasts up to 5 years.
  • Both coils enable long-term protection from pregnancy without even having to maintain them.
  • Both coils have some side effects and may not suit everyone.

Gynae Clinic is a website designed to inform our patients about gynaecological services delivered at Medical Express Clinic at 117a Harley Street. In the event that patients are seen by a clinician, this will be arranged at Medical Express Clinic which is registered in the United Kingdom with the Care Quality Commission to provide healthcare services.